Cannot upload background video


I have tried to upload different MP4 videos but always get the following error:

“Upload Failed. Currupt MP4 file provided”

I also tried this in incognito mode and with all Chrome extentions switched off.

I need to demonstrate this to a client so would really appreciate it if anyone knows what the solution would be for this.

Thanks in advance!


Here is my site Read-Only: LINK
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Hi @neilor, welcome.

Not sure what the problem is, but I would like to get a copy of the video to test.

Thanks for your reply.

I’ve tried this with a number of different files.

You can download one of these at


Hi @neilor!

I was able to reproduce on my end with the video provided in the link.

Sometimes the transcoding for a video can be off, and that is what causes the “Upload Failed. Corrupt MP4 file provided” error.

In this case what I usually do is run the video through a video transcoder which outputs a new version of the video with the correct settings.

What I did was run the video through a video transcoder called Handbrake, saved the file, and then uploaded as a background video in Webflow, and all good :slight_smile: :+1:.

Handbrake can be download here:

It’s free and open source :+1:.

Here are the steps:

  1. Download and Install Handbrake
  2. Open Handbrake and click on “Open Source” - Select your video
  3. Make sure the format is MP4
  4. Set the filename and folder to save to at the bottom
  5. Click on “Start” at the top

Once the video is transcoded you can upload as a Background Video in Webflow :+1:.

1 Like

Thanks John, I’ll give this a go :slight_smile:

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